Question

Hello Brainlians!!
Here is a question to check out your physics. Quality and correct answer needed. Please help :-

1.) A body starts with an initial velocity of 10 m/sec and acceleration 5 m/sec². Find distance covered by it in 5 seconds.

2.) An object moving along a straight line is initially moving at a velocity of +12 m/sec but is accelerating so that at a time 4 seconds later it is moving at the same speed, but in the opposite direction.
What is the object's average acceleration during the 4 seconds ?

Please answer only if you know. No spam allowed, don't be greedy for the points please. Spammers stay Away​

Answer 1

Answer:

1st answer hai above attachment Mai dekh liyo poteji

Explanation:

2. Initial velocity of the object v

i

=+12 m/s (positive direction)

Final velocity of the object v

f

=−12 m/s (negative direction)

Thus acceleration of the object a=

t

v

f

−v

i

=

4

−12−12

=−6 m/s

2